i mean that when it asks me to log in, before i can even use the app, i put my line 6 username and password into the required fields, and all i got was an 'unable to log into line6' message!
Anyway, as a workaround Ive had to create a new line 6 account, & a new email account in order to get it working! it does now, and i'm happy to report that it sounds great & i was pleasantly surprised with the range of tones found on the links to some of my music, which I wasn't sure it would, plus easy editing too to create my own sounds, which I am used to having owned an X3 live for some years.
All in all I think this is a pretty good amp, and i look forward to updates to the effects and bits and pieces like the usb on the back being usable!